Joe Bryan has spent the past three decades in prison for the murder of his wife, a crime he claims he didn't commit. His conviction rested largely on "bloodstain-pattern analysis" — a technique still in use throughout the criminal-justice system, despite concerns about its reliability.

The murder of Mickey Bryan, a quiet fourth-grade teacher, stunned her small Texas town. Then her husband, a beloved high school principal, was charged with killing her. Did he do it, or had there been a terrible mistake?

The feds faced a deadline to finish the first version of a border wall. Godfrey Garza Jr. of Hildalgo County, Texas, made it happen, and made himself a small fortune along the way. Other than Garza, no one seems too happy about that.

In 2007, the Department of Homeland Security began building 654 miles of fencing along the US-Mexico border. To complete the job, the agency had to seize land from private landowners, most living in Texas’ Rio Grande Valley.